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Checking J2 backlash
J2 = 0.15 to 0.40 mm
108.Place the dial gauge feeler pin half-way along a ring
gear tooth
(Fig.
32).
109.Check that the backlash remains between 0.15
and 0.40 mm. Carry out this check at three points
of the ring gear separated approximately by 120°.
I
:
MPORTANT
- If the backlash is incorrect, select and fit a new
thickness of shim(s).
- Then offset the ring gear (23) in the desired direc-
tion, by increasing the value of shims (38) and by
reducing by the same amount the value of the
deflector (13) or vice versa, in order to obtain the
required backlash, without modifying the differ-
ential unit preload.
N
: If possible, set J2 backlash to its minimum
OTE
value.
Final operations
110.Refit the handbrake mechanism assembly (see
section 6).
N
: The plate (5) is rectangular. It must be posi-
OTE
tioned horizontally, along its length, so that the
shaft (6) is correctly positioned in the link (13)
(Fig.
33).
111.Refit the pinion (2) (if fitted) and circlip (1)
112.Refit the left-hand side cover (see section 9).
Fit the handbrake control support, the GSPTO
support (if fitted on the cover), remove the guide
studs, fit and tighten the screws to a torque of 72
- 96 Nm.
113.Position the control link and adjust the handbrake
mechanism (see section 6).
114.Refit the right-hand hydraulic cover (see section 9).
115.Refit the intermediate shaft, the driving pinion and
rd
the 3
point hitch support.
Massey Ferguson 5400 - Issue 1.a
(Fig.
34).
GPA20 differential
06E01.23
Fig. 32
Fig. 33
Fig. 34
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